This week, I met with several people who are very concerned, extremely even, the worst case scenario is fast upon us. By that, I mean a global economy which doesn’t accept the US dollar, or any other intrinsically worthless paper currency, as a medium of exchange. Obviously, such a world would be unpleasant, at best. At worst, it would play out like a post-apocalyptic nightmare. It doesn’t take too much imagination to go down that...